#include "stdlib.h"
#include "string.h"
#include "stdio.h"
/*
#include <string.h>
void *memset(void *b, int c, size_t len);
*/
char *get_char(void)
{
	int len = sizeof(char)*100;
	char *p =(char *)malloc(len); // 堆区
	memset(p,0,len);
	strcpy(p,"abc");
	return p;
}

void main(void)
{
	char *p = NULL;
	p = get_char();
	printf("output: %s\n", p);

}

